1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andreas93 [3]
3 years ago
7

Find the length of side x in simplest radical form with a rational denominator.

Mathematics
1 answer:
madreJ [45]3 years ago
8 0

Answer:

x=2√5

Step-by-step explanation:

<u>1st method:</u>

sin(30)=opposite/hypotenuse=√5/x

sin(30)x=√5

x=√5/sin(30)

x=2√5

<u>2nd method:</u>

cos(60)=adjacent/hypotenuse=√5/x

cos(60)x=√5

x=√5/cos(60)

x=2√5

<u>3rd method:</u>

This is a 30-60-90 triangle, so we can multiply the short side, √5, by 2, to get x=2√5

You might be interested in
Is it possible for two numbers to have a difference of 5, and a sum of 12?
frozen [14]
Uhhh that doesn’t seem possible but then again i forgot simple math lol
4 0
3 years ago
Read 2 more answers
What is cd? please answer
stealth61 [152]

Answer:

18 units

Step-by-step explanation:

The centroid is located 1/3 the distance from the midpoint of a side to the opposite vertex. That means ...

CG = 2·DG = 6 + DG

Then

DG = 6 . . . . . . subtract DG from the above equation

Of course, ...

CD = CG +DG = 2·6 +6

CD = 18

7 0
3 years ago
The area of a triangle that is similar to the one below is the area of this triangle. What is the length of the base of the simi
svp [43]

The answer is 7 feet

7 0
3 years ago
3. A car starts a trip with 20 gallons of gas in its tank. The car traveled at an average
Helga [31]

Answer:

32.5%

Step-by-step explanation:

first we will have to calculate how much miles the car traveled, to do that we will multiply the speed by hour long the car was traveling for which is

65*3=195

During those 195 miles the car used 1 gallon for every 30 miles which means it used 6.5 gallons of its tank

195/30=6.5

6.5 gallons is 32.5% of 20 gallons

6.5/20=0.325

0.325 * 100 = 32.5%

3 0
3 years ago
This is due tomorrow PLZ HELP IMMEDIATELY
horsena [70]
The value of X would be 9
8 0
3 years ago
Read 2 more answers
Other questions:
  • 2. 45<br>cual es la factorizacion prima del 45 y cual es la factorizacion prima del 12 gracias​
    14·1 answer
  • The equatio. for the circle below.... yall I need correct answers fast please hallllllp
    12·1 answer
  • .
    5·1 answer
  • where r is the radius of the The formula for the lateral surface area of a cylinder is S = 2pi * r * h bases and h is the height
    10·1 answer
  • The 4 TH grade is collecting bottled water for field day. They would like to collect 100 bottles. Ava brings 4 packs of 6 and Ma
    13·1 answer
  • Helppp? if possible
    7·2 answers
  • Help please <br> WILL MARK YOU BRAINLIEST!!!!!
    7·1 answer
  • Help me please.No spammmers.
    5·1 answer
  • A manufacturer produces 400 units when the market price is $10 per unit and produces 600 units when the market price is $12 per
    15·1 answer
  • Point A is located in which quadrant?<br><br><br><br><br><br> IV<br> III<br> I<br> II
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!